Switch structure.



H. C. STUFF.

SWITCH STRUCTURE. Arrnroulon rum Dnc. 1901.

901,752. Patented 0ct.20,19o8.

TTOHNEY.

-UNITED ,STATES PATENT OFFICE.

HENRY CHARLES STIFF, OF .IIINSTOWN, PENNSYLVANIA, ASSIGNOR TO Tlll LORAIN STEEL COMPANYf-.A CGRPORATION OF PENNSYLVANIA.

SWITCH STRUCTURE.

Application filed lDecember: 2

To all whom it may concern: j

Be v1t known that I, HENRY CHARLES S'rrrr,

State of Pennsylvania, have invented a new and useful Improvementin Switch Structures, of which the following is a full, clear,

and exact description, reference being had to vide a simple and efficient tightening device for the heel of `the tongue.

lith-.these objects in view, my invention consists in the-'novel construction, arrangement. and combination ot parts pointed ontv in the appended claims, and illustrated in the accompanying drawings, in which- Figure l, is a plan view of a portion of aswitch structure embodying my invention;

Fig. 2, is a sectional view on the line II-II of Fig. 1.

A is the switch structure and is provided with the usual thread and guard surfaces. l

B is the tongue-having the enlarged circular heel the center otl rotation being at a point near the gage line.

j a is the tongue floor in the switch structure, and a is a circular recess inthe switch structure to receive the circular heel l) of the tongue.

`At the side of the switch st-ructure A, and

iri front of the tongue center, is the boar C, and projecting from the sides of the box are the'lugs c, c; and projecting from the bottom of the box are the'projections c', c.

The periphery of the heel b of the tongue B, is under cut adjacent to the box C at an angle as at '/9, Fig. 2.

Within the box C, and bearing againstthe lugs c, c, is the plate I), and passing through a tapped orice in this plate, is the screw F, having an enlarged heady, which is provided with a series of through orifices f, f', f.

G is a locking key or plate which bears against the cutaway portion b of the heel of the tongue and the switch structure, and 1s Specicaton oi Letters Eatent.

Patented oct. h2o, 190s.

L1907.-*` seria No'. 404,875.

ld in contactwith these surfaces by means c A o't' the screw F. ot Johnstown, 1n the county ot Cambria and f2 is the screw locking'pin.' This pin pro "jects through one of the orifices f and-between the proj ect-ions c', ci. Vhen itis desired to increase or decrease the tension on the screw F, the pin j is raised andused as a lever to rotate the screw', and when the proper adjustment has been effected, the `pin is dropped into the position shown, which will keep the screw -from j arrin'g-...loose The advantages of my invention result from the tongue having a flatcircular pivot of a diameter considerably. greater than the width of the heel of the tongue and the center of the arc being at a point near the gage line thereof. This enlarged cylindrical heel whose center of rotation is at a point near the gage line in combination with the flat bearing surface greatly prolonge the life of a switch structure, as the loadis carried over the center of the heel of the tongue,

Athe load will be equally distributed, so that all points of the heel oi' the tongue will receive an equal amount of wear, which will preventthe rolling or tilting of the tongue which is common in switches whose tongue receives the load on one side thereof.

` By placing the tongue securing member `at the side, and in front of the tongue pivot,

I am enabled to hold l,the tongue to the abutting portion of the switch structure; also to receive the thrust of the car wheel when taking the curve.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent is 1. In a switch structure, a. pinless tongue having an enlarged circular heel whose-center is at a-point nearthe gage line of the tongue, thebearing surface of the heel being on a line with the bearing surface of the tongue.

2. In a switch struct-ure, 'a pinless tongue having an enlarged circular heel whose center is at a point near the gage line of the tongue, the bearing surface of the heel being on a line with the-bearing surface of the tongue, an angular face on the periphery of the heel, and a retaining plate bearing against the angular face. l

In a switch structure, a pinless tongue having an enlarged circular heel whose center-is at a point near the gage line oit the tongue, the bearing surface of the heelbeing on a line with the bearing surface of the tongue, an angular face on the periphery of j the heel, and in front of the center thereof, and a retaining plate bearing against the angular face.

4. Ina switch structure, a pinless tongue having an enlarged circular heel Whose center is at a point near the gage line of the tongue, the bearing surface of the heel being on a line with the bearing surface of the tongue, an'angular face on the periphery of the heel, a retaining plate bearing against the angular face, and a screw bearing against the retaining plate. y

l5. vIn a switchv structure, a pinle'ss tongue having an enlarged circular heel, the bearing surface or' the heel being on a line with the bearing surface of the tongue, an angular 'face on the periphery of the heel, a retaining plate hearing against the angular face, a screw -bearing against the retaining plate,

and a'pin to lock the screw in its adjusted position. i

6. In a switch structure, a pinless tongue having an enlarged circular heel Whose center is at a point' noarthe gage line of the tongue, an angular face on theperiphery of the heel :unl u relriiiuing plate bearizuagiinst l the angular face. Y

` T. vlin a switch structure, a pinless tongue haring an enlmgefl circular heel Whose eenter is aj, a point near the gage line of the to11gue,"tlie tiem-ing sur1 e oi the lleel las ing on aline with the bearing surface ot' of the heel, a retaining plate bearing against the angular face, and an adjusting device to adjust the tension of the plate against. the angular face.

8. In a switch structure, a pinless tongue having an enlarged circular heel, the bearing surface ot the heel being on a line with the bearing surface of the tongue., an angular faee`on the periphery of the heel, a. retaining plate bearing againstfthe angular face. a screw bearing against the retaining plate. and means to lock the screw in its adjusted position.

In' testimony whereof', I have atiixed my signature in presence of two Witnesses.

y. HENRY CHARLES STIFF.

Witnesses:

Citas, W. Gooi), H. W. Smart-L" the tongue, an angular face on the periphery 

